Answer:
√12
Step-by-step explanation:
Use the Phythagorean Theorem.
2² + b² = 4²
= 4 + b² = 16
-4 -4
= b² = 12
√12
Answer:
[tex]\sqrt{12}[/tex] or [tex]2\sqrt{3}[/tex] (simplified)
Step-by-step explanation:
Pythagorean theorem is
α²+b²=c²
a is the leg, which is 2 in this triangle
b is the base, which x in this triangle
c is the hypotenuse, which is 4 in this triangle
So, we can plug in the values:
2²+x²=4²
4+x²=16
-4 -4
x²=12
x=[tex]\sqrt{12}[/tex], or if simplified: [tex]2\sqrt{3}[/tex]
Hope this helps!
find , the correct 1 decimal , the volume of the following
V=BH=PIr2h
Answer:
Answer: 2413 cm^3
Step-by-step explanation:
Knowns:
V=πr^2h
r= 8
h= 12
Work:
- π · 8^2 · 12 = 2412.74cm^3
- Round .7 into a 1 because it is >4, this turns 2412.74 cm^3 into 2413cm^3
Answer: 2413 cm^3
Which 2 accounts cannot be merged or made inactive?
Answer:
Credit Card Receivables. Undeposited Funds. Opening Balance Equity. Retained Earnings
Step-by-step explanation:
The 2 accounts which cannot be merged or made inactive are Credit Card Receivables and Undeposited Funds.
What is placebo group?A placebo group is defined as the statement "an inactive substance or treatment that cannot be distinguished from a real, active substance or treatment"
From an experiment, "subjects respond differently after they receive a treatment, even if the treatment is neutral".
When we have a neutral treatment that has no effect on the dependent variable is called a "placebo".
The 2 accounts which cannot be merged or made inactive are Credit Card Receivables and Undeposited Funds.
Learn more about inactive substance;
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Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation. Shaded area is 0.06945
Please show work!
Answer:
z ≈ 1.48
Step-by-step explanation:
A suitable calculator requires only the "work" of data entry. For a TI-83, you can find the result from ...
invNorm(.06945,0,1,RIGHT-tail) = 1.479899759
The z-value is about 1.48.
_____
Additional comment
My iOS TI-83/84 "work-alike" app reportedly gives more accurate results than an actual TI-83 calculator. YMMV
4(2m-5)=2(3m-4)-6m what is the value of M
Answer:
[tex] \frac{3}{2} [/tex]
Step-by-step explanation:
[tex]4(2x - 5) = 2(3x - 4) - 6x = \\ 8x - 20 = 6x - 8 - 6x = \\ 8x = 20 - 6 \\ \frac{8x}{8} = \frac{20 - 8}{8} \\ x = \frac{3}{2} [/tex]
hope its clear ♡
I dont know how to do this will someone help me
Answer: A
Step-by-step explanation:
The change in the y coordinates is 0, but the change in the x coordinates is 8.
A trapezoidal prism undergoes a dilation. The surface area of the pre-image is 49 mm². The surface area of the image is 784 mm². The height of the pre-image is 6.1 mm.
What is the height of the image?
Enter your answer as a decimal in the box.
mm
The term "dilation" refers to a transformation. The height of the pre-image is 24.4 mm.
What is the dilation factor?The term "dilation" refers to a transformation that is used to downsize an item. Dilation is a technique for making items appear bigger or smaller. The picture produced by this transformation is identical to the original shape.
Let the dilation factor of the trapezoid be x.
Now, if we write the area of the pre-image trapezoid, it can be written as,
[tex]\text{Area of trapezoid} = \dfrac{(a+b)}{2}h = 49\rm\ mm^2[/tex]
As we know the dilation is applicable to dimensions, therefore, the area of the trapezoid which is the image can be written as,
[tex]\text{Area of Image trapezoid} = \dfrac{(ax+bx)}{2}hx[/tex]
[tex]= \dfrac{x(a+b)}{2}hx\\\\=\dfrac{(a+b)}{2}h\cdot x^2\\\\=49\cdot x^2[/tex]
Now, if we calculate the scale factor(x) of the dilation we will get,
[tex]{\text{Area of trapezoid}}={\text{Area of Image trapezoid}}\\\\x^2 \cdot 49 = 784\\\\x = 4[/tex]
Further, the scale factor applied to the height of the image can be written as,
The height of the Image = 4 × Height of pre-image
= 4 × 6.1 = 24.4 mm
Hence, the height of the pre-image is 24.4 mm.
Learn more about Dilation:
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Answer:
24.4 mn
Step-by-step explanation: I took the quiz
Can someone simplify the following product, 6 x 4x²?
Answer:
24x²
Step-by-step explanation:
6 x 4x² = 24(x)(x) = 24x²
Demi is working on a presentation about a famous mathematician for her class. She decides to make her poster in a shape of a + sign
Answer: 1360 in^2
Step-by-step explanation:
Each of the four rectangles on the side is 20x12 inches. Therefore, the total area of the 4 rectangles is 4*20*12 = 960 in^2.
The area of the square in the middle is 20*20 = 400 in^2.
Therefore, the total area = 960 + 400 in^2 = 1360 in^2
36^2+b^2=45^2 ? Can someone pls help me
Answer:
[tex]b = 27[/tex]
Step-by-step explanation:
Formula: [tex]a^{2} + b^{2} = c^{2}[/tex]
[tex]36^{2} + b^{2} = 45^{2}[/tex]
[tex]b^{2} + 1296 = 2025[/tex]
[tex]b^{2} = 729[/tex]
[tex]b = 27[/tex]
A restaurant offers a dinner special that lets you choose from 3 entrees, 6 side dishes, and 4 desserts. You can choose one entree, two sides dishes, and one dessert. How many different meals are possible?
Step-by-step explanation:
Two meals are the different
Answer:
5*3*4 = 60, so 60 different main meals could be ordered.
Find the measure of the missing ANGLE.
46 degrees
52 degrees
65 degrees
83 degrees
Answer:
83°
Step-by-step explanation:
? = (1/2)[m(arc)DE + m(arc)RF]
? = (1/2)[106° + 60°]
? = 83°
C-Spec, Inc., is attempting to determine whether an existing machine is capable of milling an engine part that has a key specification of 3 ± 0.05 inches. After a trial run on this machine, C-Spec has determined that the machine has a sample mean of 3.001 inches with a standard deviation of 0.030 inch.
HELP ME OUT PLS!!!!
All postcards at a store cost the same amount. It costs $0.50 more to buy 8 postcards than it does to buy 6 postcards.
Which equation can be used to find x, the cost of each postcard in dollars?
Answer:
I'm pretty sure it's D) 8x = 6x + 0.50
There are 10 yellow cards, 6 green, 9 orange and 5 red cards in a stack turned face down. Once a card is selected it is not replaced. Find each probability.
P(two cards that are not orange)
Answer:
yellow = 33.3 %
green = 20%
orange = 30%
red = 16.6%
Step-by-step explanation:
all in all there are 30 cards
10 ➗ 30 = 0.333 = 33.3%
6 ➗ 30 = 0.20 = 20%
9 ➗ 30 = 0.30 = 30%
5 ➗ 30 = 0.166 = 16.6%
Given the circle below with secants PQR and TSR, find the length of PQ. round to the nearest tenth if necessary
Answer:
PQ ≈ 20.5
Step-by-step explanation:
The product of lengths from R to the intersection points with the circle is the same for each secant:
RS×RT = RQ×RP
40(40 +31) = (44)(PQ +44)
40(71)/44 = PQ +44
PQ = 2840/44 -44 = 64 6/11 -44 = 20 6/11
PQ ≈ 20.5
Which conclusions are valid given that ABCD is a parallelogram? Select True or False for each statement.
it is true not false true
If a > b and b > C, what is true about the
relationship between a and c? Explain your reasoning.
Answer:
a > c
Step-by-step explanation:
The Transitive Property of Inequality can be written as ...
If a > b and b > c, then a > c.
Based on the above, we can conclude from your premises that a > c.
For the following exercises, evaluate the function f(x) =-3x: + 2x at the given input.
3 f(-2)
4 f(a)
5. show that the function f(x) =ー2(x-1): + 3 is not one to one
Answer:
We use a variety of different notations to express the derivative of a function. In (Figure) we showed that if f(x)=x^2-2x, then f^{\prime}(x)=2x-2. If we had expressed this function in the form y=x^2-2x, we could have expressed the derivative as y^{\prime}=2x-2 or \frac{dy}{dx}=2x-2. We could have conveyed the same information by writing \frac{d}{dx}(x^2-2x)=2x-2. Thus, for the function y=f(x), each of the following notations represents the derivative of f(x):
f^{\prime}(x), \, \frac{dy}{dx}, \, y^{\prime}, \, \frac{d}{dx}(f(x)).
In place of f^{\prime}(a) we may also use \frac{dy}{dx}\Big|_{x=a} Use of the \frac{dy}{dx} notation (called Leibniz notation) is quite common in engineering and physics. To understand this notation better, recall that the derivative of a function at a point is the limit of the slopes of secant lines as the secant lines approach the tangent line. The slopes of these secant lines are often expressed in the form \frac{\Delta y}{\Delta x} where \Delta y is the difference in the y values corresponding to the difference in the x values, which are expressed as \Delta x ((Figure)). Thus the derivative, which can be thought of as the instantaneous rate of change of y with respect to x, is expressed as
\frac{dy}{dx}=\underset{\Delta x\to 0}{\lim}\frac{\Delta y}{\Delta x}.
Step-by-step explanation:
From Times Square in New York City, you can see Central Park and the Empire State Building. The approximate distance from Times Square to Central Park is 2 miles, Central Park to the Empire State Building is 1.3 miles, and Empire State Building to Times Square is 0.9 miles. What is the approximate angle to the other two landmarks from the Empire State Building
The approximate angle to the other two landmarks from the Empire State Building is 129.868°
What is cosine rule?
Cosine rule is used to show the relationship between the sides and angles of a triangle. It is given by:
a² = b² + b² - 2bc*cosA
Where a, b, c are the sides and A is the angle opposite to side A.
Let A represent the angle to the other two landmarks from the Empire State Building. Hence:
2² = 1.3² + 0.9² - 2(1.3)(0.9)cosA
A = 129.868°
The approximate angle to the other two landmarks from the Empire State Building is 129.868°
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A boat is heading towards a lighthouse, whose beacon-light is 141 feet above the water. The boat’s crew measures the angle of elevation to the beacon, 12 degrees
. What is the ship’s horizontal distance from the lighthouse (and the shore)? Round your answer to the nearest hundredth of a foot if necessary
Step-by-step explanation:
we have a right-angled triangle here.
there is the ground distance boat to lighthouse.
there is the height of the lighthouse = 141 ft.
and there is the line of sight boat to lighthouse light.
the angle at the boat is 12°.
the angle at the lighthouse bottom is 90°.
therefore, the angle at the lighthouse light is 180 - 90 - 12 = 78°
we use the law of sine to solve this.
a/sin(A) = b/sin(B) = c/sin(C)
with the sides and correlated angles being always opposite.
so, we have here
141/sin(12) = ground distance/sin(78)
ground distance = 141×sin(78)/sin(12) = 663.3528454... ft
≈ 663.35 ft
thank you for the help <3
Answer:
21.6
Step-by-step explanation:
Connect U and X, V and Y
Note ∠XUW = ∠VYW (facing same arc VX) and ∠W = ∠W
so ΔUXW ~ ΔVYW
then VW : YW = XW : UW
VW : YW = (YW - YX) : (UV + VW)
22 : 40 = (40 - 16) : (UV + 22)
11: 20 = 24 : (UV + 22)
11 * ( UV + 22) = 20 * 24
11* UV + 242 = 480
11 * UV = 480 - 242 = 238
so UV = 238/11 = 21.6
A public parking garage charges $5 plus an additional $2 per hour. Write the equation for the line in slope-intercept form.
Use the distributive property to write an equivalent expression. 6(f+2)
Answer: 6f + 12
Step-by-step explanation:
6(f+2)
Multiply 6 times f : 6f
Multiply 6 times 2 : 12
6f + 12
HsiwksjrINEEEDHELPPONTHISSS
Answer: 2) 2/7, 11/72 3) 2 2/5 licorice pieces
Step-by-step explanation:
2)
A fraction of another fraction is essentially the two fractions multiplied.
Therefore, 2/3 of 3/7 = (2*3)/(3*7) = 6/21 = 2/7
1/6 of 11/12 = (1*11)/(6*12) = 11/72
3) If the licorice is divided equally, that means each person would get 12/5 of licorice pieces. 12/5 as a mixed number would become 2 2/5.
Answer:
We will get 12 divided by 5 which it equals to 1.5 licornie will each person get.
Step-by-step explanation:
12/5 =2.4 2 and 1/3 of it
A skier IS skiing down a slope on the mountain.
Is the mechanical energy conserved? Why or why not?
Answer:
The mechanical energy isn't conserved.
Step-by-step explanation:
Honeslty I think you should Start cheatin on your Hw
Answer:
The mechanical energy is not conserved
Step-by-step explanation:
Recall that the law of conservation of energy states that in an isolated system (no external forces acting on it), the mechanical energy is conserved.
A skier skiing down a slope is not an isolated system in this case because the friction of the snow causes some of the mechanical energy to convert to thermal energy.
Makayla spent $29.99 plus 8.875% tax and also tipped 15% at the car wash. How much did she spent?
(Discount, tax, extra money paid, money saved, and final price can be included)
Answer:
37.1501125
Step-by-step explanation:
29.99+23.875÷100×29.99 amount then tax+tip divided by 100 ×amount
i need help with this question please look at the picture attached
Answer:
i think its 1.42857143/6
Step-by-step explanation:
hope this helps. If it does, can i have brainliest?
How do you solve friendly numbers 71+18+9=
Answer:
98
Step-by-step explanation:
71 + 9 + 18 = ( 71 + 9 ) + 18 Group numbers that add to 10 to make it easier
= 80 + 18
= 98
If you have any questions, you can ask them in the comments section of this answer. If you could mark this answer as brainliest, I would greatly appreciate it.
What is this area of this rectangle
Step-by-step explanation:
To find the area of a rectangle, we simply need to multiply its length by its width. The area is simply the width of a rectangle times height. Area = h × h, Area = h2. Hence for a square, the area is the square of its sides.
A worker uses exactly 4 screws and 7
bolts to put a metal desk together. If each metal desk requires the same ratio of screws to bolts, which statement is true?
Answer:
well i dont know the options and is there a picture? but some advice is to see how many holes there are and that can help you find the answer
Step-by-step explanation:
Tell me if there is a picture or something else so i can help further :)
Answer:
The worker uses exactly 140 screws and 80 bolts to make 20 metal desks.
The worker uses exactly 140 screws and 80 bolts to make 20 metal desks.
The worker uses exactly 80 screws and 140 bolts to make
2 metal desks.
The worker uses exactly 80 screws and 140 bolts to make 20 metal desks.
The worker uses exactly 17screws and 14bolts to make 10
metal desks.
The worker uses exactly 17 screws and 14 bolts to make 10 metal desks.
The worker uses exactly 14 screws and 17 bolts to make 10 metal desks.
Step-by-step explanation:
these our the answers